java.lang.NullPointerException

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    Rackspace cloudfiles extension for deep storage not working

    Google Groups | 5 months ago | Manish Deora
    java.lang.NullPointerException
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    java.lang.NullPointerException
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    Android: Saving Map State in Google map

    Stack Overflow | 11 months ago | Junie Negentien
    java.lang.RuntimeException: Unable to resume activity {com.ourThesis.junieNegentien2015/com.ourThesis.junieNegentien2015.MainActivity}: java.lang.NullPointerException
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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at org.apache.hadoop.fs.swift.snative.SwiftNativeOutputStream.flush()
    2. Apache Hadoop OpenStack support
      SwiftNativeOutputStream.flush
      1. org.apache.hadoop.fs.swift.snative.SwiftNativeOutputStream.flush(SwiftNativeOutputStream.java:102)[hadoop-openstack-2.3.0.jar:?]
      1 frame
    3. Java RT
      DataOutputStream.flush
      1. java.io.FilterOutputStream.flush(FilterOutputStream.java:140)[?:1.8.0_73]
      2. java.io.DataOutputStream.flush(DataOutputStream.java:123)[?:1.8.0_73]
      2 frames
    4. Druid Hadoop
      JobHelper$4.push
      1. io.druid.indexer.JobHelper$4.push(JobHelper.java:375)[druid-indexing-hadoop-0.9.1.1.jar:0.9.1.1]
      1 frame
    5. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)[?:1.8.0_73]
      2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)[?:1.8.0_73]
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)[?:1.8.0_73]
      4. java.lang.reflect.Method.invoke(Method.java:497)[?:1.8.0_73]
      4 frames
    6. Hadoop
      RetryInvocationHandler.invoke
      1. org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:186)[hadoop-common-2.3.0.jar:?]
      2. org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)[hadoop-common-2.3.0.jar:?]
      2 frames
    7. com.sun.proxy
      $Proxy229.push
      1. com.sun.proxy.$Proxy229.push(Unknown Source)[?:?]
      1 frame
    8. Druid Hadoop
      IndexGeneratorJob$IndexGeneratorReducer.reduce
      1. io.druid.indexer.JobHelper.serializeOutIndex(JobHelper.java:386)[druid-indexing-hadoop-0.9.1.1.jar:0.9.1.1]
      2. io.druid.indexer.IndexGeneratorJob$IndexGeneratorReducer.reduce(IndexGeneratorJob.java:703)[druid-indexing-hadoop-0.9.1.1.jar:0.9.1.1]
      3. io.druid.indexer.IndexGeneratorJob$IndexGeneratorReducer.reduce(IndexGeneratorJob.java:469)[druid-indexing-hadoop-0.9.1.1.jar:0.9.1.1]
      3 frames
    9. Hadoop
      LocalJobRunner$Job$ReduceTaskRunnable.run
      1. org.apache.hadoop.mapreduce.Reducer.run(Reducer.java:171)[hadoop-mapreduce-client-core-2.3.0.jar:?]
      2. org.apache.hadoop.mapred.ReduceTask.runNewReducer(ReduceTask.java:627)[hadoop-mapreduce-client-core-2.3.0.jar:?]
      3. org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:389)[hadoop-mapreduce-client-core-2.3.0.jar:?]
      4. org.apache.hadoop.mapred.LocalJobRunner$Job$ReduceTaskRunnable.run(LocalJobRunner.java:319)[hadoop-mapreduce-client-common-2.3.0.jar:?]
      4 frames
    10. Java RT
      Thread.run
      1. java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)[?:1.8.0_73]
      2. java.util.concurrent.FutureTask.run(FutureTask.java:266)[?:1.8.0_73]
      3. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)[?:1.8.0_73]
      4. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)[?:1.8.0_73]
      5. java.lang.Thread.run(Thread.java:745)[?:1.8.0_73]
      5 frames